Product Name :
CHK1 monoclonal antibody Background :
Chk1 kinase acts downstream of ATM/ATR kinase and plays an important role in DNA damage checkpoint control, embryonic development, and tumor suppression. Activation of Chk1 involves phosphorylation at Ser317 and Ser345 by ATM/ATR, followed by autophosphorylation of Ser296. Activation occurs in response to blocked DNA replication and certain forms of genotoxic stress. While phosphorylation at Ser345 serves to localize Chk1 to the nucleus following checkpoint activation, phosphorylation at Ser317 along with site-specific phosphorylation of PTEN allows for re-entry into the cell cycle following stalled DNA replication. Chk1 exerts its checkpoint mechanism on the cell cycle, in part, by regulating the cdc25 family of phosphatases. Chk1 phosphorylation of cdc25A targets it for proteolysis and inhibits its activity through 14-3-3 binding. Activated Chk1 can inactivate cdc25C via phosphorylation at Ser216, blocking the activation of cdc2 and transition into mitosis. Centrosomal Chk1 has been shown to phosphorylate cdc25B and inhibit its activation of CDK1-cyclin B1, thereby abrogating mitotic spindle formation and chromatin condensation. Furthermore, Chk1 plays a role in spindle checkpoint function through regulation of aurora B and BubR1. Research studies have implicated Chk1 as a drug target for cancer therapy as its inhibition leads to cell death in many cancer cell lines. Product :
Mouse IgM. Liquid in PBS, pH 7.3, 30% glycerol, and 0.01% sodium azide. Storage&Stability :
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles. Specificity :
Recognizes endogenous levels of CHK1 protein. Immunogen :
Recombinant fusion protein of human CHK1. The exact sequence is proprietary. Conjugate :
Unconjugated Modification :
Unmodification

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  Western blot analysis of CHK1 expression in A431 (A), Hela (B), Jurkat (C), K562 (D), MCF7 (E) whole cell lysates.

Bioworld Biotech only provide peptides for our antibodies and do not provide additional peptide customization services.

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Price/Size :

USD 368/1mg/vial

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Tips: 

For phospho antibody, we provide phospho peptide（0.5mg) and non-phospho peptide(0.5mg).

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Describe :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (WB) and Immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or IHC performed with the neutralized antibody.

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Formula:

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.

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Storage:

The freeze-dried powder is more stable. For short time at 2-8°C. For long term storage store at -20°C. 

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Note :

This product is for research use only (RUO only). Not for use in diagnostic or therapeutic procedures.

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